Question

Question 83

In a Hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?

Answer 1

In a hostel of 50 girls, food are available $=40$ days.
For 1 girl, food provisions$=50\times 40=2000$ days
Now , for (50+30) girls i.e. 80 girls, the food provision $=\frac{2000}{80}=\frac{200}{8}=25$days.